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Experimental study of the hydraulic performance of a new gully grate design

Experimental study of the hydraulic performance of a new gully grate design / Mohammad Aliff Azhar
Kajian ini telah dijalankan untuk mengkaji kesan kecekapan hidraulik dua reka bentuk galur yang dinaiktarafkan di Malaysia. Lokasi kajian tapak terletak di Bandar Baharu, Kedah. Bentuk salur galur biasanya segi empat tepat dan ia membantu mengalirkan air yang bertakung daripada permukaan jalan raya; Oleh itu, reka bentuk galur yang betul dan mencukupi adalah perlu untuk mengurangkan air bertakung di permukaan jalan. Objektif kajian ini adalah untuk mencadangkan 2 reka bentuk galur yang lebih baik. Seterusnya adalah untuk menentukan kecekapan hidraulik reka bentuk galur melalui sistem, kecerunan dan aliran yang berbeza untuk menentukan kedalaman air, halaju dan kecekapan galur tersebut. Oleh itu, model fizikal skala separuh dengan siri galur yang terdiri daripada plantar ujian dengan tangki masuk dan tangki keluar pada kedua-dua hujung plantar telah direka untuk menggambarkan interaksi hidraulik di atas dan di bawah sistem perparitan tanah melalui galur dan kawasan tadahan. Dalam kajian ini, sistem pertengahan digunakan. Sistem pertengahan adalah satu keadaan, yang membolehkan sebahagian daripada menghampiri dalam aliran ke aliran melepasi sistem ke dalam alur yang seterusnya. Keputusan yang diperolehi dari ujian dibentangkan dalam bentuk kedalaman air, halaju dan kecekapan galur. _______________________________________________________________________________________________________ This study was conducted to study the effect of hydraulic performance of two improved gully grate of a Malaysian drain. Site location of study is located at the Bandar Baharu, Kedah. The shape of the gullies inlet is usually rectangular and it helps convey water ponding on the pavement surface to the inlet system; hence a proper and adequate design is necessary to reduce the stagnant water on the pavement surface. The objective of this study is to propose 2 multiple improved design of gully grates. Next is to determine the hydraulic performance of the proposed grate design with different cross slope under different flow conditions in terms of water depth, velocity and their efficient. Therefore, a half scale physical model with series of grate comprising of a testing platform with an inlet tank and an outlet tank on both end of the platform has been designed and constructed to reflect the hydraulic interaction of the gully inlets and the designed catchment area. In this study, intermediate system that permits the approaching flow to pass through the gully downstream was used. The results obtained from the tests are presented in the form of water depth, velocity and efficiency of the grates were established.
Contributor(s):
Mohammad Aliff Azhar - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875008310
Language:
English
Subject Keywords:
hydraulic; drain; pavement
First presented to the public:
6/1/2019
Original Publication Date:
9/26/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 103
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-09-26 16:17:30.953
Submitter:
Mohd Jasnizam Mohd Salleh

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